Rutman Yu.
Rutman Yu.

Рутман Ю.Л. Rutman Yu.
Dr.Sci.Tech., the Professor of Department of Mechanics,


Publications

Seismic Performance Evaluation of Soft Ground Storey RC Frame with Masonry Infill Considering Various Retrofit Strategies
Issue: №6 2019
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There is a representation of seismic performance evaluation method with due regard to economic effect assessment, which consider different seismic retrofit strategies applying for reinforced concrete (RC) soft ground story building with masonry infilled frame in upper stories. The dependencies, which allows to estimate the influence of masonry infill panel, located between structural columns and beams inside the RC frame, on the strength and stiffness, are shown. The analytical model simulation approach, which consider the influence of masonry infill panel on seismic response of the frame, is demonstrated. The analytical dependency, which allows to select the optimal seismic retrofit scheme for this kind of building with due regard to economic consideration, is applied. Two seismic retrofit strategies are analyzed in this study among with non-retrofitted (typical) one, where the first represents the base isolation technique implementation, and the second is the ground story RC columns strengthening by increasing their cross-section and area of reinforcements.

Dynamics of Rigid Plasticity System with Two Degrees of Freedom at Impulse Loading
Issue: №6 2018
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In dynamic process the behavior of construction depends on their surface of fluidity. In article analytical decisions for a rigid plasticity system with two degrees of freedom in case of dynamic problem definition when external influence has impulsive character (initial
speed of a system is set) are received and analysed. The mathematical model of a rigid plasticity system dynamic behavior at account and not accounting of interaction projections of plastic reactions effect are provided in article. The interrelation between these approaches is found. An assessment of construction operability is given and also limit cases of the received decision are considered. Comparison with the simplified problem definition upon transition from elliptic to rectangular curve fluidity is carried separately out.